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Note 9 - Share-based Compensation (Details) - Summary of Share-based Compensation Expense (USD $)
3 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Share-based compensation expense $ 149,814 $ 205,978
Cost of revenue [Member]
   
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Share-based compensation expense 2,058 3,899
Selling, General and Administrative Expenses [Member]
   
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Share-based compensation expense 131,176 189,831
Research and Development Expense [Member]
   
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Share-based compensation expense $ 16,580 $ 12,248